package com.shigu.paypwd.util;

import java.util.Random;

public class RandomUtil {
	
	public static Random random = new Random();

	public static String getRandom(int length) {
		StringBuilder ret = new StringBuilder();
		for(int i=0;i<length;i++){
			ret.append((int)(Math.random()*10));
		}
		return ret.toString();
	}
}